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What is the difference between vmalloc and kmalloc?
...ical blocks of memory. However, it also seems as though kmalloc can fail if a contiguous physical block that you want can't be found.
What are the advantages of having a contiguous block of memory? Specifically, why would I need to have a contiguous physical block of memory in a system call...
What's the difference between “Write-Host”, “Write-Output”, or “[console]::WriteLine”?
... the output, e.g., to a file.
---- script a.ps1 ----
write-host "hello"
Now run in PowerShell:
PS> .\a.ps1 > someFile.txt
hello
PS> type someFile.txt
PS>
As seen, you can't redirect them into a file. This maybe surprising for someone who are not careful.
But if switched to use wr...
Check if table exists and if it doesn't exist, create it in SQL Server 2008
I am writing a Stored procedure in SQL Server 2008.
I need to check if a table exists in the database. If it doesn't then I need to create it.
...
Join/Where with LINQ and Lambda
...
I find that if you're familiar with SQL syntax, using the LINQ query syntax is much clearer, more natural, and makes it easier to spot errors:
var id = 1;
var query =
from post in database.Posts
join meta in database.Post_Metas on...
How to get the name of a function in Go?
..., some care may be required here: the documentation for .Pointer() states "If v's Kind is Func, the returned pointer is an underlying code pointer, but not necessarily enough to identify a single function uniquely. The only guarantee is that the result is zero if and only if v is a nil func Value."
...
What do people find difficult about C pointers? [closed]
...or how much room the compiler gives for a particular chunk of memory. You know you're dealing with this problem when people talk about "what (primitive) variable X really is".
Most of my students were able to understand a simplified drawing of a chunk of memory, generally the local variables secti...
Determine a string's encoding in C#
...
//////////// If the code reaches here, no BOM/signature was found, so now
//////////// we need to 'taste' the file to see if can manually discover
//////////// the encoding. A high taster value is desired for UTF-8
if (taster == 0 || taster > b.Length) taster = b.Length; // Ta...
TortoiseSVN icons not showing up under Windows 7
...will hijack a bunch of the 11 possible overlay icons (boy would it be nice if Microsoft upped the number of these as the number of applications that use them seem to increase and increase)...
You can see what overlays are set up, and change them (at your own risk) in the registry here:
HKEY_LOCAL_...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...ve as a template for a general rotation detector component that can be modified to fulfill specific requirements.
The implementation approach for multitouch here follows Using App Inventor extensions to implement multitouch: Scale Detector, which contains a more detailed explanation of the techni...
Regex replace uppercase with lowercase letters
...t (e.g. lOWERCASE => lOwercase)
Find: ([A-Z])(\w+)
Replace: $1\L$2
Shift-right-uppercase (e.g. Case => cAse => caSe => casE)
Find: ([a-z\s])([A-Z])(\w)
Replace: $1\l$2\u$3
Shift-left-uppercase (e.g. CasE => CaSe => CAse => Case)
Find: (\w)([A-Z])([a-z\s])
Replace: \u$1\l...